Concrete hanger block



April 24, y1928. 1,667,532

H. G. cARLsoN CONCRETE HANGER BLOCK Filed Octjl. 1926 2 Sheets-Sheet 1 Ja Ja Z0 Ja 'M l A Y 2y y y 2.9

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April 24; ma 1,667,532

. H. G. CARLSON cqucnm' HANGER BLock Filed Oct. 1. 1925 2 Sheets-Sheet 2 Patented Apr. 24, 1928.

UNITED STATES PATENT OFFICE.'

i'IzJALMAR (G. cAaLsomv-or WQRCESTER,MASSACHUSETTS; Assrcmon To Rockwool) .COKPRATQN 0.15 MeSSeCsUSEHS" 'sritrN'xLER cfoivriANY` or MAssAcHUsE'TTsor WORCESTER, MASSACHUSETTS; A

CONCRETE HANGER BLOCK.

Application led October 1v, 1926. Serial No. 133,000.

' c This inventionrelates to a block adapted to'provide a hanger blockwhich can be made of pressed metal instead of the usual casting; to provide a hollow block of pressed metal having end pieces integral with the bottom and filling the ends of the sides so as to prevent the entrance of concrete; to provide perforated ears on the sides of the block for receiving the nails vwhich temporarily hold it in place while the concrete is being poured around it; and to'provide extensions on the sides projecting upwardly in contact with each other and having flanges extending voutwardly in opposite ldirections to firmly anchor the block in the concrete. v-

The invention also involves the method of producing the hanger block and other features as will appear below. c

Reference is to be had to the accompanying drawings, in which- Fig. 1 is a sectional view of a concrete structure with a vhanger block constructed in accordance with this invention imbedded therein;

Fig. 2 is a plan ofthe original blank as cut out for the production of this article;

Fig. 3 is an edge view showing the form of this blank after the first operation;

Fig. 4 is a similar view showing the result of the neXt operation which produces two flanges in the blank;

Fig. 5` is a transverse sectional view on the line 5-5'of Fig. 4;

Fig. 6 is a plan of the blank shown in Figs. 4 and 5;

Fig. 7 is an end view showing the blank of Fig. 6 with its sides bent upwardly toward each other;

Fig. 8 is a plan of the same;

Fig. 9 is a view similar to Fig. 7 showing the next operation; and v Fig. 10 isa side View thereof.

In Fig. 1, I have shown the complete article imbedded in the concrete, It will be understood that when the concrete is being molded around it the hang'erblockis held in position by Vtwo nails 10er the'like which are driven into aboard 11 which constitutes the bottom ofthe mold forthe concrete land is afterwards removed, 'lea-vino" 'thena'il's projecting out. These nails 'hold the/hangerV bloc-k temporarily Ywhile the ."concrete "is poured and they have no further function. Their ends may be bentback outfof the way by means of a hammer. Itv will be seen that a rod 12 is shown depending from the hanger block held in position by anut or the like 13 located within it. I will not described the details of the hanger block with reference to Fig. 1, but will describe the process of manufacture, using the other` figures for that purpose.

Fig. 2 shows the original flat blank. It is provided with two end pieces 15 and with two side pieces 16, the sides having opposite edges concave at 17. The first operation is to bend this blank into the form shown in Fig. 3k in which the sidesy 16 are in a plane parallel with the body of the blank, but,

the ends 15 are in latter. y

In the next bending operation two functions are performed. The ends of the sides 16 are bent downwardly at right angles to the sides to form flanges 18 and punches are forced through the body of the blank to out two slits and punch down the metal the same plane as the Vbetween them. Thisforms perforated ears Now the blank is put in other dies and.

the sides 16" bent up toward each other as shown in Figs. 7 and 8, and an opening 21 is punched in the bottom 22. At the same time the ends 15 are turned upwardly at Y right angles to their original position. It y takes another similar operation to bend overl the sides 16 into contact with the edges of the ends v15 as .shown n Fig. 9, and in Fig. 10. Then With still another operation the two perforated Walls 16 are forced into contact with each other as shown in Fig. l, thus sealing the top against the entrance of concrete.

The side walls 16 Contact with the vertical side and the slanting top edges of the vendsthroughout their area. to sea-l the ends against the entrance of concrete. The perforations 20 register with each other to permit a solid body of concrete7 integral'with the concrete structure, to extend through the hanger block and thus anchor it. The `flanges 18 project out oppositely into the concrete to prevent any tendency of the block to fall out.

Although I yhave illustra-ted and described only one form of `the invention I am aware of the fact that modifications can be made therein by any person skilled in the art without departingrfrom the scope of the invention as expressed in the claim.

Therefore, I do not Wish to be limited in these respects, but

What I do claim is:

As an article of 1nanufacture,. a sheet metal hanger bloc-k adapted to be embedded in concrete having a fiat bottom having an opening therethrough for a fasteningmeans and provided With a flat surface fora supporting means inside, thev bottom Ahaving tivo integral ends each in one piece projecting therefrom in opposite directions and bent upwardly in vertical plan'es and having vertical edges and tops converging inwardly, the sides of the hanger block being also integral with the bottom and bent .upwardly and overlapping the ends throughout their Width and contacting Withthem along the vertical and slanting edges to the center and projecting upwardly therefrom.

In testimony whereof I have hereunto afiixed my signature.

HJALMAR G. CARLSON.l 

